/*
 * Copyright 2011 Harald Wellmann.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied.
 *
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.googlecode.osgienterprise.library.datasource;

import java.util.Dictionary;
import java.util.Hashtable;

import javax.sql.DataSource;

import org.apache.derby.jdbc.EmbeddedDataSource;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Registers an in-memory Derby data source in the OSGi service registry.
 * 
 * @author Harald Wellmann
 *
 */
public class DerbyDataSourceProvider implements BundleActivator {
    private Logger log = LoggerFactory.getLogger(DerbyDataSourceProvider.class);
    private DataSource ds;

    public void start(BundleContext context) throws Exception {
        log.info("creating data source");
        ds = createDataSource();
        Dictionary<String, String> props = new Hashtable<String, String>();
        props.put("osgi.jndi.service.name", "jdbc/library");
        context.registerService(DataSource.class.getName(), ds, props);
    }

    public void stop(BundleContext context) throws Exception {
    }

    private DataSource createDataSource() {
        EmbeddedDataSource ds = new EmbeddedDataSource();
        ds.setDatabaseName("memory:itest");
        ds.setCreateDatabase("create");
        return ds;
    }
}
